From 7c172f746f94d2f98e0927d2f0e1c3ba3e95e062 Mon Sep 17 00:00:00 2001
From: selsta <selsta@sent.at>
Date: Fri, 29 May 2020 00:19:08 +0200
Subject: [PATCH] virtual_memory: add MAP_JIT on macOS

---
 src/virtual_memory.cpp | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/virtual_memory.cpp b/src/virtual_memory.cpp
index 2b752cb..2f3ee39 100644
--- a/src/virtual_memory.cpp
+++ b/src/virtual_memory.cpp
@@ -99,7 +99,17 @@ void* allocMemoryPages(std::size_t bytes) {
 	#else
 		#define RESERVED_FLAGS 0
 	#endif
-	mem = mmap(nullptr, bytes, PAGE_READWRITE | RESERVED_FLAGS, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+	#ifdef __APPLE__
+		#include <TargetConditionals.h>
+		#ifdef TARGET_OS_OSX
+			#define MEXTRA MAP_JIT
+		#else
+			#define MEXTRA 0
+		#endif
+	#else
+		#define MEXTRA 0
+	#endif
+	mem = mmap(nullptr, bytes, PAGE_READWRITE | RESERVED_FLAGS, MAP_ANONYMOUS | MAP_PRIVATE | MEXTRA, -1, 0);
 	if (mem == MAP_FAILED)
 		throw std::runtime_error("allocMemoryPages - mmap failed");
 #endif